Comparing two treatments for heart attack patients with high thrombus burden
Official title: Effects of Intracoronary Recombinant Human TNK Tissue-type Plasminogen Activator Versus Tirofiban on Myocardial Perfusion and Clinical Prognosis in Patients With ST-segment Elevation Myocardial Infarction and High Thrombus Burden: a Multicenter, Randomized, Controlled, Single-blind, Non-inferior Study
Run by Henan Institute of Cardiovascular Epidemiology · NCT06769256 · Data updated 2026-11-12
This study is testing if a new treatment for heart attack patients with a lot of blood clots works as well as an existing treatment and whether it causes more bleeding.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 300 (estimated) |
| Sponsor | Henan Institute of Cardiovascular Epidemiology Academic / other |
| Locations | 1 site (Zhengzhou, Henan) |
| Status | Recruiting |
| Started | January 1, 2025 |
| Main results expected | December 30, 2027 |
| Study ends | December 30, 2027 |
| Registry record updated | May 22, 2026 |
| Trial ID | NCT06769256 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 18-75 who have experienced STEMI within 12 hours and have a high thrombus burden.
✕Probably not a fit
Patients with severe comorbidities or contraindications to the treatments being tested may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to evaluate the effectiveness and safety of intracoronary rhTNK-tPA compared to Tirofiban in patients experiencing ST-segment elevation myocardial infarction (STEMI) with a high thrombus burden. The study will enroll 300 participants who will be randomly assigned to receive either treatment. The primary outcome will be assessed through the corrected TIMI frame count after percutaneous coronary intervention (PCI), while major adverse events will be monitored over a one-year follow-up period. The trial seeks to determine if rhTNK-tPA is as effective as Tirofiban and whether it leads to a higher incidence of bleeding events.
Why it matters
Potential benefit: If successful, this study could provide a more effective treatment option for patients with STEMI and high thrombus burden, potentially improving outcomes and reducing complications.
How similar studies have gone: Previous studies have explored similar treatment comparisons in STEMI patients, but the specific use of rhTNK-tPA in this context is less common, making this approach somewhat novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18-75 years old; * STEMI within 12 hours of onset; * TIMI flow grade 0-2 or TIMI thrombus grade ≥4 after thrombus aspiration or balloon dilation * Radial artery access Exclusion Criteria: * A functional coronary collateral supply (Rentrop grade≥2) to the infarctrelated artery * Known or suspected old myocardial infarction of target vessels * Rescue PCI * Cardiogenic shock * Contraindications to Tirofiban or rhTNK-tPA * Severe hepatic and renal insufficiency (alanine aminotransferase ≥5 upper limit of normal; estimated glomerular filtration rate \<30ml/min/1.73m2, or on dialysis) * Prolonged (\> 10 minutes) cardiopulmonary resuscitation * Definite mechanical complications (including ventricular septal perforation, or rupture of the Papillary tendon bundle, or rupture of the left ventricular free wall) * Severe chronic obstructive pulmonary disease or respiratory failure * Severe infection * Neurological disorders * Malignant tumors or other pathophysiological conditions with an expected survival time of less than 1 year * Pregnant or lactating women
Where it's running
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Fuwai Central China Cardiovascular Hospital
Zhengzhou, Henan, China Recruiting
Study contacts
- Study coordinator: You Zhang
- Email: 13598019682@126.com
- Phone: +86 37158681037
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Adenosine given before primary PCI to reduce no-reflow in STEMI patients.
See if giving intracoronary adenosine before primary PCI lowers the chance of slow flow/no-reflow in adults with STEMI.
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Using cardiac MRI and AI to predict outcomes after STEMI
This project will try to use routine cardiac MRI scans plus AI to see if imaging features can predict long-term outcomes in people who had a STEMI treated with primary PCI.
-
Using beta-blockers for heart attack patients in intensive care
This study is testing if the heart medication metoprolol can help heart attack patients in intensive care feel better and avoid worsening their condition.
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Using an aspiration catheter for treating heart attacks
This study tests whether using a special catheter can help remove blood clots from the heart arteries during a heart attack to improve blood flow and patient recovery.
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Using machine learning to improve early diagnosis of acute cardiovascular conditions
This study is testing a new tool that uses advanced computer technology to help doctors quickly and accurately diagnose serious heart problems in patients who come to the emergency room with chest pain or trouble breathing.
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Administering adrenaline in STEMI patients during PCI to prevent no reflow
This study tests if giving adrenaline during heart procedures can help STEMI patients avoid complications with blood flow without causing heart rhythm problems.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.